It nay just be me but I wouldn't want to try sending live (syncing) data to a microSD card though some people have done it without a problem, (so far). A lot of things can go wrong. Have a backup plan!

Regarding your sync problems (other thread), this can occur when you have an Office document with the same name as another Office document, but the version of Office is different. For example, an Office 2013 "docx" document deliberately named with ".doc". OneNote likes to categorize Office documents and found the conflict.

Here's what you can do: Open those offending files and save as a new name. Slightly modify the name, but preferrably, also allow Office (MS Word) to choose the filetype (.docx, for example). Then delete the offending files.